Home / 11,327.13-15,631.29-6,291.18

Finding the Fourth Proportional to 11,327.13, 15,631.29 and 6,291.18

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Solution

The fourth proportional to 11,327.13, 15,631.29 and 6,291.18 is: 8,681.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.13 : 15,631.29 = 6,291.18 : x
  2. Step 2: Convert to fraction form
    11,327.13/15,631.29 = 6,291.18/x
  3. Step 3: Cross multiply
    11,327.13x = 15,631.29 × 6,291.18
  4. Step 4: Simplify right side
    11,327.13x = 98,339,259.02
  5. Step 5: Solve for x
    x = 98,339,259.02/11,327.13
  6. Step 6: Final answer
    x = 8,681.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.